1. Who will be the fifth starter?

The Orioles' rotation likely will feature a top two of Jason Hammel, who had a breakout year in 2012 and signed a one-year, $6.75 million deal on Friday to avoid arbitration, and Wei-Yin Chen, who is the only Orioles pitcher who made more than 20 starts in 2012. Chris Tillman and Miguel...

The Orioles' rotation likely will feature a top two of Jason Hammel, who had a breakout year in 2012 and signed a one-year, $6.75 million deal on Friday to avoid arbitration, and Wei-Yin Chen, who is the only Orioles pitcher who made more than 20 starts in 2012. Chris Tillman and Miguel... (Thearon W. Henderson, Getty Images)

The Orioles' rotation likely will feature a top two of Jason Hammel, who had a breakout year in 2012 and signed a one-year, $6.75 million deal on Friday to avoid arbitration, and Wei-Yin Chen, who is the only Orioles pitcher who made more than 20 starts in 2012. Chris Tillman and Miguel...Thearon W. Henderson, Getty Images